[OpenWrt-Devel] [PATCH] config: extend small_flash feature

[Alex Maclean]

Extend the small_flash feature to disable swap, core dumps, and
kernel debug info, and change the squashfs block size to 1024KiB.

This saves approximately 18K in the kernel image on ath79, and 64K in
the rootfs.

Signed-off-by: Alex Maclean <monkeh at monkeh.net>
---
 config/Config-images.in | 1 +
 config/Config-kernel.in | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/config/Config-images.in b/config/Config-images.in
index 90e873edb8..07ef619e70 100644
--- a/config/Config-images.in
+++ b/config/Config-images.in
@@ -149,6 +149,7 @@ menu "Target Images"
 			int "Block size (in KiB)"
 			depends on TARGET_ROOTFS_SQUASHFS
 			default 64 if LOW_MEMORY_FOOTPRINT
+			default 1024 if (SMALL_FLASH && !LOW_MEMORY_FOOTPRINT)
 			default 256
 
 	menuconfig TARGET_ROOTFS_UBIFS
diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 0cbe5e8351..8eb954e1a5 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -31,7 +31,7 @@ config KERNEL_CRASHLOG
 
 config KERNEL_SWAP
 	bool "Support for paging of anonymous memory (swap)"
-	default y
+	default y if !SMALL_FLASH
 
 config KERNEL_DEBUG_FS
 	bool "Compile the kernel with debug filesystem enabled"
@@ -112,7 +112,7 @@ config KERNEL_DEBUG_KERNEL
 
 config KERNEL_DEBUG_INFO
 	bool "Compile the kernel with debug information"
-	default y
+	default y if !SMALL_FLASH
 	select KERNEL_DEBUG_KERNEL
 	help
 	  This will compile your kernel and modules with debug information.
@@ -205,7 +205,7 @@ config KERNEL_COREDUMP
 config KERNEL_ELF_CORE
 	bool "Enable process core dump support"
 	select KERNEL_COREDUMP
-	default y
+	default y if !SMALL_FLASH
 
 config KERNEL_PROVE_LOCKING
 	bool "Enable kernel lock checking"
-- 
2.17.0


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